rails_rake_notes.txt

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Command Line Basics
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# https://guides.rubyonrails.org/command_line.html
# All commands can run with -h or --help to list more information.


    bin/rails console
    bin/rails server
    bin/rails test
    bin/rails generate
    bin/rails db:migrate
    bin/rails db:create
    bin/rails routes
    bin/rails dbconsole
    rails new app_name

> bin/rails generate task feeds list

	lib/tasks/feeds.rake:
	
	namespace :feeds do
	  desc "TODO"
	  task list: :environment do
		u = User.first
		puts "hello #{u.email}"
	  end
	end
	
> find it: rails -T
> run it: rails feeds:list	--> hello admin@d1g.com

* :environment loads the whole environment and allows you to use models classes .. etc

- To use arguments

namespace :feeds do
  desc "TODO"
  task :list, [:v1] => [:environment] do |task, args|
    u = User.first
    puts "hello #{u.email} #{task} #{args.v1}"
  end
end

> rails "feeds:list[jj]"	--> hello admin@d1g.com feeds:list jj

- Making chain of tasks

namespace :feeds do
  desc "TODO"
  task :list, [:v1] => [:list2] do |task, args|
    u = User.first
    puts "hello #{u.email} #{task} #{args.v1}"
  end

  desc "TODO 2"
  task :list2 => :environment do |task|
    u = User.last
    puts "hello #{u.email}"
  end
end

> rails "feeds:list[jj]"	--> hello user@d1g.com
								hello admin@d1g.com feeds:list jj